Dr. John Colonna can still clearly remember the first time he watched a newly-transplanted kidney pink up with blood and begin to produce urine inside another body. Then a third-year student at Medical College of Virginia, Dr. Colonna had already decided to specialize in general surgery. That moment in the operating room more than three decades ago, part of a two-week … [Read more...] about John O. Colonna, II, MD, FACS